inflate.hpp

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// SPDX-License-Identifier: BSD-2-Clause
 
#ifndef pRC_CORE_TENSOR_FUNCTIONS_INFLATE_H
#define pRC_CORE_TENSOR_FUNCTIONS_INFLATE_H
 
#include <prc/core/functors/view.hpp>
#include <prc/core/tensor/declarations.hpp>
#include <prc/core/tensor/views/inflate.hpp>
 
namespace pRC
{
    template<Size... Is, class X, IsTensorish R = RemoveReference<X>>
        requires(sizeof...(Is) == R::Dimension)
    static inline constexpr auto inflate(X &&a)
    {
        if constexpr(IsInvocable<View, X>)
        {
            using V = RemoveReference<decltype(view(forward<X>(a)))>;
            return TensorViews::Inflate<typename R::Type,
                decltype(typename R::Sizes() * Sizes<Is...>()), Sizes<Is...>,
                V>(view(forward<X>(a)));
        }
        else
        {
            return eval(inflate<Is...>(a));
        }
    }
}
#endif // pRC_CORE_TENSOR_FUNCTIONS_INFLATE_H